The Splash Potion of Healing instantly restores 4 health points (2 hearts) to players and mobs within its splash radius. It is brewed by adding Gunpowder to a Potion of Healing in a Brewing Stand. This potion is particularly useful in group combat or survival scenarios where multiple players or mobs require immediate healing. Its throwable nature ensures quick and efficient application, making it a versatile tool for maintaining health during battles or emergencies.